LMV7239M7X Equivalent & Substitute Parts

Part Overview

The LMV7239M7X is a general-purpose comparator IC manufactured by Texas Instruments, housed in a 5-TSSOP (SC-70-5, SOT-353) surface-mount package. This device features push-pull output configuration and operates across a 2.7V to 5.5V supply voltage range. The part is designated as Last Time Buy status, indicating limited availability. Equivalent and substitute parts are necessary to ensure design continuity, maintain supply chain flexibility, and accommodate alternative sourcing strategies when the primary part reaches end-of-life.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	LMV7239M7X
Category	Linear Comparator
Package / Case	5-TSSOP, SC-70-5, SOT-353
Mounting Type	Surface Mount
Type	General Purpose
Number of Elements	1
Output Type	Push-Pull
Voltage - Supply, Single/Dual (±)	2.7V ~ 5.5V
Voltage - Input Offset (Max)	6mV @ 5V
Current - Input Bias (Max)	0.4µA @ 5V
Current - Quiescent (Max)	95µA
CMRR, PSRR (Typ)	67dB CMRR, 85dB PSRR
Propagation Delay (Max)	62ns
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitute parts for the LMV7239M7X are classified into two categories based on substitution criteria:

Parametric Equivalents (Texas Instruments LMV7239 Series) These parts share identical electrical specifications and package configuration with the main part. Substitution is direct with no design modifications required. The key matching parameters are: push-pull output type, 2.7V–5.5V supply voltage range, 6mV input offset voltage, 0.4µA input bias current, 95µA quiescent current, 67dB CMRR, 85dB PSRR, 62ns propagation delay, SC-70-5 package, and -40°C to 85°C operating temperature range.

Manufacturer-Recommended Alternatives (Cross-Manufacturer Substitutes) These parts provide functional equivalence with variations in specific electrical parameters while maintaining the same package footprint and general-purpose comparator functionality. Substitution requires verification of parameter tolerances within application requirements. Key matching criteria include: general-purpose comparator type, push-pull output configuration, SC-70-5 or compatible 5-pin surface-mount package, and overlapping supply voltage ranges.

Parameter Comparison

Parameter	LMV7239M7X	LMV7239M7	LMV7239M7/NOPB	LMV7239M7X/NOPB	BU7251G-TR	MCP6561T-E/LT	TS3011ICT	TS3021ICT	TS7211AILT	TS861AIDT	TS881ILT
Manufacturer	TI	TI	TI	TI	Rohm	Microchip	STMicro	STMicro	STMicro	STMicro	STMicro
Package / Case	5-TSSOP, SC-70-5	5-TSSOP, SC-70-5	5-TSSOP, SC-70-5	5-TSSOP, SC-70-5	SC-74A, SOT-753	5-TSSOP, SC-70-5	5-TSSOP, SC-70-5	5-TSSOP, SC-70-5	SC-74A, SOT-753	8-SOIC	SC-74A, SOT-753
Output Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	CMOS, Push-Pull, Rail-to-Rail, TTL	Push-Pull, Rail-to-Rail	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Voltage - Supply (V)	2.7–5.5	2.7–5.5	2.7–5.5	2.7–5.5	1.8–5.5, ±0.9–2.75	1.8–5.5	2.2–5	1.8–5	2.7–10	2.7–10	0.85–5.5
Voltage - Input Offset Max (mV)	6 @ 5V	6 @ 5V	6 @ 5V	6 @ 5V	11 @ 3V	10 @ 5.5V	—	6 @ 5V	7 @ 5V	7 @ 5V	6 @ 5V
Current - Input Bias Max (µA)	0.4 @ 5V	0.4 @ 5V	0.4 @ 5V	0.4 @ 5V	0.001 @ 3V	0.000001 @ 5.5V	—	0.16 @ 5V	0.003 @ 5V	0.3 @ 5V	0.00001 @ 5V
Current - Quiescent Max (µA)	95	95	95	95	35	130	1100	90	12	16	0.5
CMRR Typ (dB)	67	67	67	67	80	66	—	79	70	70	78
PSRR Typ (dB)	85	85	85	85	80	70	—	—	80	—	—
Propagation Delay Max (ns)	62	62	62	62	550	80	—	105	—	2000	22000
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 125	—	-40 to 125	-40 to 85	-40 to 85	-40 to 125
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Last Time Buy	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Parametric Equivalents (No Design Changes Required)

LMV7239M7, LMV7239M7/NOPB, and LMV7239M7X/NOPB are direct parametric equivalents of the LMV7239M7X. All three parts share identical electrical specifications and SC-70-5 package configuration. The primary distinction is product status: LMV7239M7/NOPB and LMV7239M7X/NOPB are designated Active, providing extended availability compared to the Last Time Buy status of the main part. These equivalents are suitable for immediate substitution without circuit redesign.

Cross-Manufacturer Alternatives (Application-Dependent Substitution)

BU7251G-TR (Rohm Semiconductor) provides functional equivalence with enhanced input bias current performance (1pA vs. 0.4µA) and lower quiescent current (35µA vs. 95µA). However, the package is SC-74A (SOT-753) rather than SC-70-5, requiring PCB layout modification. Supply voltage range extends to ±0.9V–2.75V dual supply operation.

MCP6561T-E/LT (Microchip Technology) offers superior input bias current (1pA), extended operating temperature range (-40°C to 125°C), and rail-to-rail output capability. Package remains SC-70-5 compatible. Propagation delay is 80ns versus 62ns, and quiescent current is 130µA versus 95µA.

TS3011ICT (STMicroelectronics) maintains SC-70-5 package compatibility with 2mV hysteresis specification. Supply voltage range is 2.2V–5V. Quiescent current is significantly higher at 1.1mA. Propagation delay and input offset specifications are not provided.

TS3021ICT (STMicroelectronics) provides close electrical alignment with 6mV input offset voltage, 0.16µA input bias current, and 90µA quiescent current. Extended operating temperature range (-40°C to 125°C) and SC-70-5 package compatibility support direct substitution with minor performance trade-offs (105ns propagation delay vs. 62ns).

TS7211AILT (STMicroelectronics) uses SC-74A (SOT-753) package, requiring PCB modification. Supply voltage range extends to 2.7V–10V. Quiescent current is significantly lower at 12µA. Propagation delay specification is not provided.

TS861AIDT (STMicroelectronics) uses 8-SOIC package, requiring substantial PCB redesign. Supply voltage range extends to 2.7V–10V. Propagation delay is 2µs, significantly slower than the 62ns specification of the main part.

TS881ILT (STMicroelectronics) uses SC-74A (SOT-753) package. Supply voltage range is 0.85V–5.5V with extended operating temperature (-40°C to 125°C). Quiescent current is extremely low at 500nA. Propagation delay is 22µs, substantially slower than the main part.

Frequently Asked Questions (FAQ)

Q: Can LMV7239M7/NOPB be used as a direct replacement for LMV7239M7X?

A: Yes. Both parts share identical electrical specifications, SC-70-5 package configuration, and push-pull output type. The primary difference is product status: LMV7239M7/NOPB is Active, while LMV7239M7X is Last Time Buy. No circuit modifications are required.

Q: What is the difference between LMV7239M7X and LMV7239M7X/NOPB?

A: Both parts are electrically identical with SC-70-5 packaging. The "/NOPB" suffix indicates lead-free (no-lead) plating compliance. Selection depends on supply chain availability and procurement requirements.

Q: Can BU7251G-TR replace LMV7239M7X without PCB changes?

A: No. BU7251G-TR uses SC-74A (SOT-753) package instead of SC-70-5. PCB layout modification is required. However, electrical performance is comparable, with improved input bias current (1pA) and lower quiescent current (35µA).

Q: Which substitute offers the best low-power performance?

A: TS881ILT provides the lowest quiescent current at 500nA. However, it uses SC-74A package and has significantly slower propagation delay (22µs). For SC-70-5 package compatibility with low power consumption, TS7211AILT offers 12µA quiescent current.

Q: Is MCP6561T-E/LT suitable for high-temperature applications?

A: Yes. MCP6561T-E/LT operates across -40°C to 125°C, exceeding the -40°C to 85°C range of LMV7239M7X. SC-70-5 package compatibility supports direct substitution for temperature-extended designs.

Q: What are the package compatibility constraints for substitution?

A: LMV7239M7X uses 5-TSSOP (SC-70-5, SOT-353) package. Direct substitutes maintaining this package are LMV7239M7, LMV7239M7/NOPB, LMV7239M7X/NOPB, MCP6561T-E/LT, TS3011ICT, and TS3021ICT. Alternatives using SC-74A (SOT-753) or 8-SOIC packages require PCB redesign.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant, matching the compliance status of LMV7239M7X.

Q: Which substitute has the fastest propagation delay?

A: MCP6561T-E/LT offers 80ns propagation delay, closest to the 62ns specification of LMV7239M7X. TS3021ICT provides 105ns. Slower alternatives include BU7251G-TR (550ns), TS861AIDT (2µs), and TS881ILT (22µs).

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